Motorized stroller accessory

ABSTRACT

A wheeled platform has a base, a plurality of wheels, and a power supply. A connector extends from the wheeled platform. A motor assembly has at least one motor mounted on the connector to couple with a stroller. A controller assembly steers the stroller. The base includes an upper surface for supporting an operator. The base forms a wheel assembly for holding the wheels. The power supply sends power to the motor assembly through the control assembly to drive the stroller.

CROSS REFERENCE TO RELATED APPLICATION

This application claims the benefit of co-pending U.S. patentapplication Ser. No. 16/424,560 entitled “MOTORIZED STROLLER ACCESSORY”filed May 29, 2019, which claims the benefit under 35 U.S.C. § 119(e) ofU.S. Provisional Application No. 62/680,864 entitled “MOTORIZED STROLLERACCESSORY” filed Jun. 5, 2018, U.S. Provisional Application No.62/687,375 entitled “MOTORIZED STROLLER ACCESSORY” filed Jun. 20, 2018,and U.S. Provisional Application No. 62/814,898 entitled “MOTORIZEDSTROLLER ACCESSORY” filed Mar. 7, 2019, all of which are incorporatedherein by reference.

BACKGROUND

Many products are designed to assist caregivers with infants and youngchildren. Such products include strollers, which represent one of themost common and useful products for providing such assistance. Astroller can best be described as a wheeled folding carriage designed asa chair in which an infant can be manually pushed. Conventionalstrollers are designed for use with newborns, infants, toddlers, andsmall children up to five years of age or older.

Strollers can provide a mode of transportation for children, so thatparents can exercise or otherwise move about while keeping theirchildren nearby. Strollers also alleviate the fatigue that can resultfrom carrying children. The stroller does a great job of enabling thecaregiver to take the child along for various outings without beingrequired to constantly carry the child. The stroller also prevents thechild from wandering off during shopping trips, at amusement parks, oranywhere the parent or care provider typically walks. Conventionalstroller designs require the operator to push the stroller while walkingor running.

The fact that the stroller must be moved around, physically, by thecaregiver is a drawback with conventional strollers. Indeed, manuallypushing a stroller for an extended period of time can be tiresome,especially when used in crowded shopping malls or amusement parks.Moreover, child care items, blankets, extra clothes, food, and the likecan be transported in a stroller, so that the easy task of pushing thestroller can become quite daunting, especially over long periods of timeor distances. Additionally, strollers are often pushed up very steepinclines and are pushed all day long on an almost daily basis; it iseasy to see how pushing a stroller alone can tire the caregiver out.

Many types of power driven conveyances, such as power drivenwheelchairs, are known. Such conveyances include drive motors that canbe adapted for use in strollers to overcome the known disadvantages ofstrollers. For example, a motorized add-on can be inserted into theframe and wheel assemblies of conventional strollers. While these driveassembly add-ons can provide a means of push assistance to a stroller,they have distinct disadvantages as well, such as the inability to steerthe stroller in some cases. Accordingly, there exists a need for animproved means by which mechanical assistance can be provided to a userof a stroller when needed and the physical effort required to move astroller can be reduced.

SUMMARY

The following summary is provided to introduce a selection of conceptsin a simplified form that are further described below in the detaileddescription. This summary is not intended to identify key features oressential features of the claimed subject matter, nor is it intended tobe used to limit the scope of the claimed subject matter.

In various implementations, a wheeled platform has a base, a pluralityof wheels, and a power supply. A connector extends from the wheeledplatform. A motor assembly has at least one motor mounted on theconnector to couple with a stroller. A controller assembly steers thestroller. The base includes an upper surface for supporting an operator.The base forms a wheel assembly for holding the wheels. The power supplysends power to the motor assembly through the control assembly to drivethe stroller.

In other implementations, a method for operating a wheeled platformhaving an interface extending therefrom is provided. The interface isconnected to a stroller. An operator is supported on an upper surface ofthe wheeled platform. At least one motor is coupled to the stroller.Power is sent from a power supply to the at least one motor to drive thestroller.

In yet other implementations, supporting means support an operator.Connecting means connect the supporting means to a stroller. Drivingmeans drive the stroller. Powering means power the driving means.Controlling means steer the stroller. Driving means are mounted onconnecting means to couple with the stroller.

In other implementations, a kit includes a wheeled platform having abase, a plurality of wheels, and a power supply. A connector is providedfor connecting to and extending from the wheeled platform. A motorassembly has at least one motor for mounting on the connector to couplewith a stroller. A controller assembly is coupled with the wheeledplatform. The base includes an upper surface for supporting an operator.The base forms a wheel assembly for holding the wheels.

In yet other implementations, an apparatus for interfacing with astroller, the apparatus includes a wheeled platform having a base, aplurality of wheels, and a power supply, a connector extending from thewheeled platform, and a controller assembly for steering the stroller.The base includes an upper surface for supporting an operator. The baseforms a wheel assembly for holding the wheels. The plurality of wheelsincludes at least one omnidirectional wheel to drive the stroller.

These and other features and advantages will be apparent from a readingof the following detailed description and a review of the appendeddrawings. It is to be understood that the foregoing summary, thefollowing detailed description and the appended drawings are explanatoryonly and are not restrictive of various aspects as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of a motorized stroller accessory system inaccordance with the present disclosure.

FIG. 2 is a perspective view of a motorized stroller accessory system inaccordance with the present disclosure.

FIG. 3 is a fragmentary perspective view of a connector connecting amotorized operator platform accessory with a stroller in accordance withthe present disclosure.

FIG. 4 is a fragmentary perspective view of the underside of a motorizedoperator platform in accordance with the present disclosure.

FIG. 5 is a fragmentary perspective view of another embodiment of amotorized stroller accessory system in accordance with the presentdisclosure.

FIG. 6 is another fragmentary perspective view of the embodiment of amotorized stroller accessory system shown in FIG. 5.

FIG. 7 is a perspective view of a connecting component for connecting amotorized operator platform accessory with a stroller in accordance withthe present disclosure.

FIG. 8 is another perspective view of the connecting component shown inFIG. 7.

FIG. 9 is a perspective view of an alternate drive mechanism connectedto a mounting bracket assembly in accordance with the presentdisclosure.

FIG. 10 is a top plan view of an alternative wheeled platform accordancewith the present disclosure.

FIG. 11 is a bottom plan view of the alternative wheeled platform shownin FIG. 10 accordance with the present disclosure.

FIG. 12 is a top plan view of another alternative wheeled platformaccordance with the present disclosure.

FIG. 13 is a bottom plan view of the alternative wheeled platform shownin FIG. 12 accordance with the present disclosure.

FIG. 14 is a top plan view of another alternative wheeled platformaccordance with the present disclosure.

FIG. 15 is a bottom plan view of the alternative wheeled platform shownin FIG. 14 accordance with the present disclosure.

FIG. 16 is a top plan view of another alternative wheeled platformaccordance with the present disclosure.

FIG. 17 is a bottom plan view of the alternative wheeled platform shownin FIG. 16 accordance with the present disclosure.

FIG. 18 is a plot illustrating an aspect of the operation of thealternative wheeled platform shown in FIG. 16 in accordance with thepresent disclosure.

FIG. 19 is a schematic diagram illustrating an aspect of the operationof the alternative wheeled platform shown in FIG. 16 in accordance withthe present disclosure.

FIG. 20 is another schematic diagram illustrating an aspect of theoperation of the alternative wheeled platform shown in FIG. 16 inaccordance with the present disclosure.

FIG. 21 is a top plan view of another alternative wheeled platformaccordance with the present disclosure.

FIG. 22 is a bottom plan view of the alternative wheeled platform shownin FIG. 21 accordance with the present disclosure.

FIG. 23 is a top plan view of another alternative wheeled platformaccordance with the present disclosure.

FIG. 24 is a bottom plan view of the alternative wheeled platform shownin FIG. 23 accordance with the present disclosure.

FIG. 25 is a block diagram of another alternative wheeled platformaccordance with the present disclosure.

FIG. 26 is an exemplary process in accordance with the presentdisclosure.

DETAILED DESCRIPTION

The subject disclosure is directed to new and improved baby strollersand carriages. More specifically, the subject disclosure is directed toa motorized accessory that aids in propelling, stopping and steering thestroller while simultaneously carrying an operator. These new andimproved baby stroller accessories reduce or eliminate the physicalfatigue associated with conventional strollers. Moreover, the subjectdisclosure represents an improvement over powered strollers becausethese new and improved stroller accessories can transport the operatorwith the stroller.

The detailed description provided below in connection with the appendeddrawings is intended as a description of examples and is not intended torepresent the only forms in which the present examples can beconstructed or utilized. The description sets forth functions of theexamples and sequences of steps for constructing and operating theexamples. However, the same or equivalent functions and sequences can beaccomplished by different examples.

References to “one embodiment,” “an embodiment,” “an exampleembodiment,” “one implementation,” “an implementation,” “one example,”“an example” and the like, indicate that the described embodiment,implementation or example can include a particular feature, structure orcharacteristic, but every embodiment, implementation or example can notnecessarily include the particular feature, structure or characteristic.Moreover, such phrases are not necessarily referring to the sameembodiment, implementation or example. Further, when a particularfeature, structure or characteristic is described in connection with anembodiment, implementation or example, it is to be appreciated that suchfeature, structure or characteristic can be implemented in connectionwith other embodiments, implementations or examples whether or notexplicitly described.

Numerous specific details are set forth in order to provide a thoroughunderstanding of one or more embodiments of the described subjectmatter. It is to be appreciated, however, that such embodiments can bepracticed without these specific details.

Various features of the subject disclosure are now described in moredetail with reference to the drawings, wherein like numerals generallyrefer to like or corresponding elements throughout. The drawings anddetailed description are not intended to limit the claimed subjectmatter to the particular form described. Rather, the intention is tocover all modifications, equivalents and alternatives falling within thespirit and scope of the claimed subject matter,

The disclosed subject matter is directed to a motorized operatorplatform accessory that functions as an after-market system that isdesigned to interface with a stroller in order to mobilize and controlthe stroller. The motorized operator platform accessory has the abilityto couple with the stroller to carry the stroller operator while drivingthe stroller.

The system includes a rolling operator platform on swiveling wheels, acoupling frame to connect the platform to the stroller, a set ofelectric motors to transfer torque to the stroller rear wheels, a powersystem, and a control system. The coupling frame connects the operatorplatform to the stroller in a horizontally rigid non-swiveling manner soas to allow for operation of the stroller in reverse when necessary.

Referring now to FIG. 1, there is shown a motorized stroller accessorysystem, generally designated by the numeral 100, that can transport auser/operator (not shown). The motorized stroller accessory system 100is self-propelled and includes a motorized stroller accessory 110coupled to a stroller 112. The motorized stroller accessory 110 ispowered to drive the stroller 112 while supporting the user-operator, sothat the user-operator expends less energy while transporting an infant(not shown) in the stroller 112.

The motorized stroller accessory 110 includes a wheeled platform 114, aconnector 116, and a controller assembly 118. The wheeled platform 114can support and transport the user-operator, while providing power forthe connector 116 and the controller assembly 118. The connector 116couples the motorized stroller accessory 110 to the stroller 112 tofunction as a coupling frame. The connector 116 can connect the wheeledplatform 114 to the stroller 112 in a horizontally rigid non-swivelingmanner so as to allow for operation of the stroller 112 in reverse whennecessary. The controller assembly 118 can provide the user-operatorwith the ability to steer the motorized stroller accessory system 100and stroller 112.

The wheeled platform 114 has a base 120, a wheel assembly 122, and apower supply 124. The base 120 has an upper surface 126 that supportsthe user-operator while the motorized stroller accessory 110 is coupledto the stroller 112 and propels the stroller 112 in a desired direction.The base upper surface 126 includes a coating that has a highcoefficient of friction to engage the user-operator frictionally.

The wheel assembly 122 includes a plurality of wheels 128 mounted withinthe wheeled platform 114. The wheel assembly 122 can be integral withthe base 120, so that that the plurality of wheels 128 are mountedwithin the base 120. The wheels 128 are generally circular in shape butcan be any shape or size. In some embodiments, the plurality of wheels128 are mounted within the wheel assembly 122 to swivel for improvedmaneuverability. In such embodiments, the wheeled platform 114 swivelsvertically to allow for the motorized stroller accessory system 100 toadapt to undulations in the terrain.

The wheel assembly 122 can be supported by three or more wheels 128. Insome embodiments, eight wheels 128 can support the wheel assembly 122 toimprove the maneuverability of the wheeled platform 114 over uneven orrough surfaces. In some embodiments, the wheels 128 include a rim, ahub, and spokes.

The wheel assembly 122 can include a suspension system to stabilize thewheeled platform 114. For example, the suspension system can allow oneof the wheels 128 to move independently from the other wheels 128. Thesuspension system can help absorb vibration and shock from a surface,thus contributing to the handling of a user/operator. The wheels 128 becomprised of any suitable material, such as rubber or plastic.

The stroller 112, the wheeled platform 114, and the connector 116 can beconstructed from rigid, semi-rigid, or flexible components, and/or fromcombinations of rigid, semi-rigid, and flexible components. The stroller112, the wheeled platform 114, and the connector 116 can be made fromany suitable material through any suitable manufacturing method.Suitable materials include metals, ceramics, plastics, and composites.

It should be understood that each component of the invention, individualcomponents of the present invention can be made of a material that isspecifically suited for the individual structural tolerances. Anycombination of material or a uniform application of a single materialthat results in an acceptably robust structure is suitable. In thisexemplary embodiment, the base 120 can support an adult human having amaximum weight of between 200 and 300 pounds, but it is contemplatedthat the maximum weight can be greater than 300 pounds or less than 200pounds. The stroller 112 can be constructed to carry an infant, atoddler, or a small child.

The motorized stroller accessory 110 can be sold as an after-marketitem, as an accessory, or packaged with a stroller 112 as a completesystem. The motorized stroller assembly 110 can be sold as afully-assembled, turn-key device, partially assembled, or as a kit ofcomponents for assembly by the ultimate consumer.

As shown in FIG. 1, the connector 116 extends from the wheeled platform114 to couple the motorized stroller accessory 110 to the stroller 112.The connector 116 can function as an interface between the wheeledplatform 114 and the stroller 112, so that the motorized strolleraccessory 110 and the stroller 112 function as a unit or coupled system.The connector 116 can include a frame 130 that connects to the stroller112. The frame 130 can include an armature 132 that extends from thewheeled platform 114 to the stroller 112. In some embodiments, theconnector 116 connects to the stroller 112 to in a horizontally rigid,non-swiveling manner so as to allow for operation of the stroller 112 inreverse when necessary. The rigid connection can provide the ability tosafely slow down or stop the stroller 112 when necessary.

In some embodiments, the armature 132 can be rigid and can be mounted onthe connector frame 130 for movement in a vertical direction. In suchembodiments, the armature 132 can have the ability to move in ahorizontal direction or can only move in the vertical direction. Inother embodiments, the armature 132 can be mounted for movement in avertical direction only. Additionally, the stroller 112 can include abottom basket 136 for storing the armature 134 therein when themotorized stroller accessory 110 is decoupled from the stroller 112.

Similarly, the stroller accessory 110 can be stored by swiveling thearmature 132 along the axis of the rear stroller wheels 142 and at theconnection between the armature 132 and the wheeled platform 114. Insuch embodiments, the stroller accessory 110 can be folded for storagein the bottom basket 136 without further disassembly, particularly whenthe power source 124 needs to be recharged.

The connector 116 can include a motor assembly 138 mounted thereon. Themotor assembly 138 can include at least one motor 140 mounted on theconnector 116 to couple with the stroller 112. The motor 140 can providetorque to a set of wheels 142 to move the stroller 112. In someembodiments, the motor 140 can be an electric motor, such as a DC motor.

The motor assembly 138 can include a plurality ofindependently-controlled DC motors mounted on the connector frame 130 torotate the wheels 142. In other embodiments, the motor 140 can includeat least one motor shaft connected to sheaves, such as small radius flatsheaves or curved sheaves. The sheaves can be coated with a materialhaving a high coefficient of friction. Alternatively, the motor assembly138 can include other means of transferring torque to the wheels 142,including alternative drive mechanisms, drive belt configurations, orhub motors. In some embodiments, the drive mechanism can include beltsthat surround and cover stroller tires in a configuration that issimilar to tank tracks.

The motor assembly 138 can be coupled to the power supply 124. The powersupply 124 can be mounted on the wheeled platform 114 and can include apower supply module 144 and a power source 146. The power supply module130 and the power source 146 can be mounted under the wheeled platformbase 120. The power supply module 144 and/or the power source 146 can beconnected to the controller assembly 118 to supply power to the motor140. In some embodiments, the power source 146 can be a portable powersupply that includes one or more batteries.

The controller assembly 118 can steer and drive the motorized strolleraccessory system 100 and stroller 112 by independent control of thestroller wheels 142. The controller assembly 118 includes a controlmodule 148 and a pair of hand held controllers 150-152. The controlmodule 148 can be positioned under the base 120. The motor 140 can beconnected to a control module 148 within the controller assembly 118.The pair of hand-held controls 150-152 can communicate with the controlmodule 148 either wired or wirelessly.

Referring now to FIGS. 2-4 with continuing reference to the foregoingfigure, there is shown another embodiment of a motorized strolleraccessory system, generally designated by the numeral 200. Thisexemplary motorized stroller accessory system 200 can transport auser/operator 210. The motorized stroller accessory system 200 includesa motorized stroller accessory 212 coupled to a stroller 214. Themotorized stroller accessory 212 includes a wheeled platform 216, aconnector 218, and a controller assembly 220. The connector 218 allowsthe motorized stroller accessory 212 to interface with the stroller 214in order to propel said stroller 214 and user/operator 210simultaneously.

The stroller 214 includes stroller frame 222 having multiple members224, three or more wheels 226, and one or more housing units 228connected to the frame 222. The frame 222 represents a structureoperable to accommodate an infant (not shown) and other items (notshown), such as child care items, blankets, extra clothes, food, and thelike.

The frame 222 can be comprised of any suitable material, such as steel,aluminum, plastic, fiberglass, or a combination thereof. In someembodiments, the frame 222 includes rods, hinges, axles, hand grip baror handles 230, and a support for an underneath storage compartment.Hand grip bar or handles 230 are adjustable to accommodate the height ofthe operator 210 in some instances. Further, in some examples, the handgrip bar or handles 230 can support a console or a drink holder.

In some embodiments, the frame 222 can be folded for compactness. Forexample, the operator 210 can retract or expand the frame 222 by pushinga release button or by turning a handle or a hand grip bar to releasehinged connections. In some instances, a locking mechanism can securethe frame 222 in either its compacted or expanded position. One purposeof the locking mechanism is to prevent the stroller from accidentallyclosing when in use.

The wheels 226 represent a component rotatably mounted within the frame222 for rotation about one or more axes. The wheels 226 are generallycircular in shape but can be any shape or size.

The housing unit 228 represents a structure operable to accommodate oneor more infants. In some embodiments, the frame 222 accommodates thehousing unit 228 in a forward-facing direction. In some specificembodiments, the frame 222 can adjust to accommodate a forward-facinghousing unit 228 in one or more reclined positions. Additionally, theframe 222 can accommodate the housing unit 228 in a rear-facingdirection, and in some particular instances the frame 222 can adjust toaccommodate a rear-facing housing unit 228 in one or more reclinedpositions. In other embodiments, the housing unit 228 comprises areversible seat, and frame 222 accommodates the reversible seat in boththe forward-facing and rear-facing directions. Further, the frame 222can accommodate more than one housing unit 228.

In some instances, the housing unit 228 can comprise an independenttransport device that can be removed from frame 222, such as a car seat.For example, the frame 222 can provide snaps, buttons, Velcro®, or someother mechanism to secure the removable housing unit 228 in place. Insome instances, the frame 222 can support the removable housing unit 228in either a rear-facing or forward-facing direction. Additionally, theframe 222 can support more than one removable housing unit 228.

The housing unit 228 can consist of any suitable material, for example,one or more of plastic, rubber, fabric, or nylon. In some embodiments,housing unit 228 is adjustable to accommodate riders of different sizes(e.g., infant, toddler, etc.). For instance, the housing unit 228 can becomprised of components operable to expand to different sizes (e.g.,fabric, Velcro®, snaps, buttons), modular components that support addingor removing portions of the housing unit 228 to increase or decrease thesize (e.g., expanded polystyrene foam), or other structure or materialthat allows housing unit 228 to dynamically increase or decrease in size(e.g., viscoelastic polyurethane foam).

In certain embodiments, the housing unit 228 can comprise one or moredifferent materials. For example, all or a portion of the housing unit228 can comprise a structurally solid material (e.g., plastic,fiberglass, metal). Additionally, all or a portion of the housing unit228 can be comprised of a flexible material (e.g. fabric). In someembodiments, the housing unit 228 includes a combination of two or moreof the aforementioned materials. Different riders can benefit fromdifferent configurations. For example, small riders such as infants thatrequire extra support can benefit from a structurally solid housing unitencased in fabric, whereas larger riders such as toddlers can benefitfrom an all-fabric housing unit that allows for more movement. Further,the housing unit 228 can include an adjustable 3-point or 5-pointharness to secure the child to the housing unit 228. In some examples,the harness includes nylon straps, plastic buckles, and metal clips.

In some embodiments, the housing unit 228 is an enclosure. The enclosurecan be adjustable by a zippers, snaps, or any other suitable fasteners.In some particular embodiments, the material covering the enclosure istransparent to provide a rider with visibility to the outsideenvironment. Additionally, the material covering the enclosure can beopaque (e.g., cloth, flexible plastic, etc.). In other embodiments, thehousing unit 228 is open to the environment. The housing unit 228 caninclude a sun visor or a shade to shield a rider from ultraviolet (UV)rays. Further, the housing unit 228 can be comprised of waterproof orwater resistant materials. As shown in FIGS. 3-4, the connector 218includes an essentially rectangular frame 232 formed from members234-236 and armatures 238-240. The member 234 includes a pair of yokes242-244 that receive the armatures 238-240. The connector 218 alsoincludes a motor assembly 246 that has a pair of motors 248-250 thatdrive the stroller wheels 226. The motors 248-250 are directly connectedto a control module 252 and a power supply 254 that are mounted underthe wheeled platform 216.

The frame 232 can be can have an essentially isosceles trapezoidal shapeto maintain horizontal rigidity. The isosceles trapezoidal shape furtherprevents horizontal swiveling of the platform 212 with respect to thestroller frame 222 due to torsional stress. In some cases, the frame 232can include additional members forming an x-type cross frame or similarshoring to further to the horizontal rigidity the structure. Suchadditional members are especially suitable when the frame 232 has anisosceles trapezoid shape and is mounted in a manner to resemble aparallelogram.

Referring now to FIGS. 5-6 with continuing reference to the foregoingfigures, there is shown another embodiment of a motorized strolleraccessory system, generally designated by the numeral 300. Thisexemplary motorized stroller accessory system 300 includes a motorizedstroller accessory 310 coupled to a stroller 312. The motorized strolleraccessory 310 includes a wheeled platform 314 and a connector 316.

The connector 316 includes a frame 318 and a motor assembly 320. Themotor assembly 320 includes a pair of motors 322-324 and a pair ofmounting brackets 326-328 for attaching the motors 322-324 to thestroller 312. The motors 322-324 apply torque to drive a pair of wheels330-332 that are mounted on the stroller 312.

Unlike the embodiments shown in FIGS. 1-4, the wheeled platform 314includes an emergency brake 334. The emergency brake 334 represents anapparatus configurable to slow, stop, or park the motorized strolleraccessory system 300. In some embodiments, the emergency brake 334applies force directly to one or more wheels 336 mounted on the wheeledplatform 314. For example, the emergency brake 334 can comprise a leverthat presses a friction plate against one or more of the wheels 336.

In another embodiment, the emergency brake 334 functions by decreasingpower to the motors 322-324, thus allowing the motorized strolleraccessory system 300 to decelerate. Some embodiments of the motorizedstroller accessory system 300 include a safety brake that automaticallyor manually slows or stops wheels 330-332 and/or wheels 336 in the eventthat a control module, such as control module 148 shown in FIG. 1 orcontrol module 252 shown in FIG. 4, sensing a predetermined condition.The motorized stroller accessory system 300 can also include a parkingbrake (not shown) that prevents 330-332 and/or wheels 336 from rotatingto secure the motorized stroller accessory system 300 in a stoppedposition.

Referring now to FIGS. 7-8 with continuing reference to the foregoingfigures, an exploded view of an exemplary mounting bracket assembly,generally designated by the numeral 400. The mounting bracket assembly400 includes a mounting bracket component 410 and a motor bracketcomponent 412. The motor bracket component 412 has a tubular verticalmember 414 and a motor 416. In this exemplary embodiment, the mountingbracket component 410 is essentially equivalent to the mounting brackets326-328 shown in FIG. 6. The motor component 410 includes a matingbracket 412 and a motor 414. The motor 416 is essentially identical tothe motors 322-324 shown in FIG. 6.

The tubular vertical member 414 can include an integral track 418 havinga pair of flanged rails 420-422. The mounting bracket component 410includes a pair of grooves 424-426 that define a tongue 428 that slidesinto the track 418 to join the mounting bracket component 410 to themotor bracket component 412, releasably or removably.

A pin 430 extends from the tubular vertical member 414 and a second pin432 extends from the tongue 428. A spring 434 can connect the pins430-432 to spring load the motor 416 to maintain tension from a strollerand/or stroller wheels, such as the stroller 112 shown in FIG. 1, thestroller 214 shown in FIGS. 2-4, or the stroller 312 shown in FIGS. 5-6and/or the stroller wheels 330-332 shown in FIG. 6.

The mounting bracket component 410 includes a vertical member 436 and aplurality of fastening systems 438-442 for connecting the mountingbracket component 410 to a stroller, such as the stroller 112 shown inFIG. 1, the stroller 214 shown in FIGS. 2-4, or the stroller 312 shownin FIGS. 5-6. The fastening systems 438-440 are mounted on the verticalmember 436. The fastening system 438 includes a U-shaped member 444, aband 446, and a buckle 448. The fastening system 440 includes a U-shapedmember 450, a band 452, and a buckle 454.

The mounting bracket assembly 400 can include a latching mechanism 456for connecting the mounting bracket component 410 to the motor bracketcomponent 412. The latching mechanism 456 can include a latch 458 thatcan be inserted, releasably, into a hole 460. The latch mechanism 456can be activated after sliding the motor bracket component 412 up alongits track on the mounting bracket component to hold it in place so thatthe motor sheaves are no longer in contact with the stroller wheels andthe stroller can be used in a conventional manner by frictionallyseparating the motor 416 from a stroller wheel, such as the stroller 112shown in FIG. 1, the stroller 214 shown in FIGS. 2-4, or the stroller312 shown in FIGS. 5-6.

Referring to FIG. 9 with continuing reference to the foregoing figures,an exemplary alternate drive mechanism, generally designated by thenumeral 500, is shown. The alternate drive mechanism is connected to amounting bracket assembly 510, which is essentially equivalent to themounting bracket assembly 400 shown in FIGS. 7-8.

In this exemplary embodiment, the drive mechanism 500 includes asprocket wheel 512 that connects to a stroller wheel 514 having a track516 thereon and a belt 518 that frictionally engages a member 520 thatextends from a motor 522. The motor 522 can rotate the member 520 todrive the belt 518. The belt 518 rotates the sprocket wheel 512 to drivethe stroller wheel 514 and transfer torque thereto.

Referring to FIGS. 10-11 with continuing reference to the foregoingfigures, an exemplary alternate wheeled platform, generally designatedby the numeral 600, is shown. The wheeled platform 600 can be used inplace of the wheeled platform 110 shown in FIG. 1. The wheeled platform600 includes a base 610, a power supply 612, a pair of drive mechanisms614-616, a pair of wheels 618-620, an axle 622 connecting the wheels618-620, a turntable 624, and a connecting member assembly 626. Thedrive mechanisms 614-616, the wheels 618-620, and the axle 622 form awheel assembly.

The drive mechanisms 614-616 are treaded systems that include motors628-630, belts 632-634, and pulleys 636-638 that are connected to thewheels 618-620. The motors 628-630 include rotating cylinders 640-642that form pulleys 644-646 on one end. The power supply 612 powers themotors 628-630 to rotate the cylinders 640-642 and the pulleys 644-646.The power supply 612 can be controlled by a remote controller (notshown).

The pulleys 644-646 pull the belts 632-634 to rotate the pulleys 636-638to rotate the wheels 618-620. The wheels 618-620 are connected to oneanother with the axle 622. The axle 622 is mounted on the base 610through a pair of downwardly extending mounts 648-650. The axle 622extends through the mounts 648-650.

The connecting member assembly 626 includes a pair of connecting members652-654 that form a tee. The connecting member 652 is fixably mounted onthe turntable 624, so that base 610 can rotate relative to theconnecting member 652 to steer the wheeled platform 600 when the wheeledplatform 600 is connected to a stroller, such as the stroller 214 shownin FIG. 2. The connecting member 654 includes a pair of pin connectors656-658 for connecting to the stroller 214.

Referring to FIGS. 12-13 with continuing reference to the foregoingfigures, another exemplary alternate wheeled platform, generallydesignated by the numeral 700, is shown. The wheeled platform 700 can beused in place of the wheeled platform 110 shown in FIG. 1. The wheeledplatform 700 includes a base 710, a power supply 712, a pair of drivemechanisms 714-716, a pair of wheels 718-720, an axle 722 connecting thewheels 718-720, a turntable 724, and a connecting member assembly 726.In this exemplary embodiment, the base 710, the power supply 712, thepair of drive mechanisms 714-716, the pair of wheels 718-720, and theaxle 722 function in the same manner as the base 610, the power supply612, the pair of drive mechanisms 614-616, the pair of wheels 618-720,and the axle 622 shown in FIGS. 10-11.

Unlike the embodiment shown in FIGS. 10-11, the connecting memberassembly 726 includes three connecting members 728-732 that form atruss. The connecting member 728-730 are fixably mounted on theturntable 724, so that base 710 can rotate relative to the connectingmembers 728-730 to steer the wheeled platform 700 when the wheeledplatform 700 is connected to a stroller, such as the stroller 214 shownin FIG. 2. The connecting member 732 includes a pair of connectors734-736 for connecting to the stroller 214.

Referring to FIGS. 14-15 with continuing reference to the foregoingfigures, another exemplary alternate wheeled platform, generallydesignated by the numeral 800, is shown. The wheeled platform 800 can beused in place of the wheeled platform 110 shown in FIG. 1. The wheeledplatform 800 includes a base 810, a power supply 812, a pair of drivemechanisms 814-816, a pair of wheels 818-820, an axle 822 connecting thewheels 818-820, a turntable 824, and a connecting member assembly 826.

In this exemplary embodiment, the base 810, the power supply 812, thepair of drive mechanisms 814-816, the pair of wheels 818-820, and theaxle 822 function in the same manner as the base 610, the power supply612, the pair of drive mechanisms 614-616, the pair of wheels 618-720,and the axle 622 shown in FIGS. 10-11 or the base 710, the power supply712, the pair of drive mechanisms 714-716, the pair of wheels 718-720,and the axle 722 shown in FIGS. 12-13. The turntable 824 and theconnecting member assembly 826 function in the same manner as theturntable 724 and the connecting member assembly 726 shown in FIGS.12-13.

Unlike the embodiments shown in FIGS. 10-11 or the embodiments shown inFIGS. 12-13, the wheeled platform 800 includes an essentially trapezoidshaped extension 828 that extends at an angle from the base 810. Theextension 828 can include a wheel assembly 830 that includes a fork 832mounted for rotation on a plate 834. The fork 832 holds an additionalwheel 836.

Referring to FIGS. 16-20 with continuing reference to the foregoingfigures, another exemplary alternate wheeled platform, generallydesignated by the numeral 900, is shown. The wheeled platform 900 can beused in place of the wheeled platform 110 shown in FIG. 1. The wheeledplatform 900 includes a base 910, a controller 912, a pair of drivemechanisms 914-916, a pair of wheels 918-920, an axle 922 connecting thewheels 918-920, a turntable 924, and a connecting member assembly 926.

In this exemplary embodiment, the base 910, the pair of drive mechanisms914-916, the pair of wheels 918-920, and the axle 922 function in thesame manner as the base 610, the pair of drive mechanisms 614-616, thepair of wheels 618-720, and the axle 622 shown in FIGS. 10-11 or thebase 710, the pair of drive mechanisms 714-716, the pair of wheels718-720, and the axle 722 shown in FIGS. 12-13. The turntable 924functions in the same manner as the turntable 724 shown in FIGS. 12-13.

Unlike the embodiments shown in FIGS. 10-15, the wheeled platform 900includes a controller 910 that includes a housing that holds anincorporated power supply, a processor, and a gyroscopic sensor and apair of foot straps 928-930 for receiving the feet of a user. Thecontroller 910 can control acceleration and deceleration by pitching thewheeled platform 900. The controller 910 can have the ability to reversethe wheeled platform 900. The foot straps 928-930 are optional and canbe omitted from embodiments in which a user must be able to jump off ofthe wheeled platform 900 rapidly and/or in an emergency.

Additionally, the wheeled platform 900 includes a vertical swivelingbracket system 932 in the connecting member assembly 926 to allow theuser to pitch the wheeled platform 900 as a control input. In someembodiments, the controller 910 communicates with a handheld inputdevice 934, which can include a joystick (not shown), to power steer amotorized stroller accessory system, such as the motorized strolleraccessory system 100 shown in FIG. 1, by varying the power sent to eachwheel 918-920, yawing the wheeled platform 900 as a result to change thedirection of the motorized stroller accessory system.

Referring now to FIG. 18 with continuing reference to the foregoingfigures, the speed and direction of the wheeled platform 900 can becontrolled either by the handheld input device 934 or by gyroscopicpitch input to the controller 910. In the case of controller use forspeed, the controller y axis can be used as an input to determine targetspeed with the following formula:V _(B) =A*f(b*y)where: y is the data input from the y axis of the controller; b is ascalar scaling factor for the y value; f(y) is a function of the yvalue, appropriately scaled; A is a scalar scaling factor for theresultant function; and V_(B) is the target speed. The function, f(y),can be sinusoidal, linear, or any other mathematical function as deemedappropriate. The change in speed is to be controlled such that excessivepositive or negative acceleration is avoided. As such, an accelerationlimiter is used so that speed is not changed in excess of this rateregardless of y-axis input

Referring now to FIG. 19 with continuing reference to the foregoingfigures, the pitch angle can be used as an input to determine targetspeed when platform pitch is used to control speed with the followingformulas:V _(B) =V _(B0) +A*f(b*φ)t _(T) =t ₀ ±T _(scale)where: φ is the data input from the platform pitch as determined by agyroscope; b is a scalar scaling factor for the φ value; f(φ) is afunction of the φ value, appropriately scaled; A is a scalar scalingfactor for the resultant function; V_(B) is the target base speed set tobe reached at the target time t_(T); V_(B0) is the instantaneous basespeed; to is instantaneous time (current time); and t_(T) is the targettime, and is always in the future by an amount equal to T_(scale).

The function, f(φ), can be sinusoidal, linear, or any other mathematicalfunction as deemed appropriate. The use of this function causes thesystem to add speed (accelerate) when the value of φ is positive (i.e.pitching forward), reduce speed when q is negative, and maintainconstant speed when q is zero and the platform is level.

The difference between V_(B) and V_(B0), along with the value ofT_(scale) determine the amount of postive and negative acceleration feltby the system occupants. The change in speed is to be controlled suchthat excessive positive or negative acceleration is avoided. As such, anacceleration limiter is used so that speed is not changed in excess ofthis rate regardless of φ input

Referring now to FIG. 20 with continuing reference to the foregoingfigures, platform yaw is determined by a properly-calibrated sensor thatis used in combination with the controller x-axis to calculate the leftand right motor speeds. This maintains the required yaw as determined bythe controller x-position and the following formulas:V _(R) =V _(B0) +A*f(c*x*f(V _(B0))−d*θ)V _(L) =V _(B0) −A*f(c*x*f(V _(B0))−d*θ)where: A, c, and d are all constant scaling factors; f(x,θ,V_(B0)) is afunction of x,θ, and V_(B0); V_(B0) is the instantaneous speed, which isthe average of the right and left speeds; the function f(V_(B0)) is aninversely proportional calculation of V_(B0) such that at higher speedsthe x-controller input is scaled down in order to achieve bettercontrol, more stability and wider turns; and V_(R) and V_(L) are thetarget speeds for the right and left motors respectively.

The function, f(x,θ,V_(B0)), can be sinusoidal, linear, or any othermathematical function as deemed appropriate. The function, f(V_(B0)),can be linear, quadratic, polynomial, logarithmic, exponential,sinusoidal, or any other type as deemed appropriate.

The speeds V_(R) and V_(L) are different during transients when there isa change in the controller x-axis input or yaw deflection θ such thatc*x*f(V_(B0)) does not equal d*θ. The difference in left/right speedcauses the platform to yaw until c*x*f(V_(B0))=d*θ, at which pointf(x,θ,V_(B0)) equals zero, V_(R)=V_(L)=V_(B0), and the platform yawangle remains at θ until a different x-axis input is sent from thehandheld controller.

Referring to FIGS. 21-22 with continuing reference to the foregoingfigures, another exemplary alternate wheeled platform, generallydesignated by the numeral 1000, is shown. The wheeled platform 1000 canbe used in place of the wheeled platform 110 shown in FIG. 1. Thewheeled platform 1000 includes a base 1010, a controller 1012, a pair ofdrive mechanisms 1014-1016, a pair of wheels 1018-1020, an axle 1022connecting the wheels 1018-1020, a turntable 1024, a connecting memberassembly 1026, and a pair of foot straps 1028-1030.

In this exemplary embodiment, the base 1010, the pair of drivemechanisms 1014-1016, the pair of wheels 1018-1020, and the axle 1022function in the same manner as the base 610, the pair of drivemechanisms 614-616, the pair of wheels 618-720, and the axle 622 shownin FIGS. 10-11 or the base 710, the pair of drive mechanisms 714-716,the pair of wheels 718-720, and the axle 722 shown in FIGS. 12-13.

The controller 1012 functions in the same manner as the controller 912shown in FIGS. 16-20. The turntable 1024 functions in the same manner asthe turntable 724 shown in FIGS. 12-13. The controller 1012 cancommunicate with a handheld input device 1032 that functions in the samemanner as the handheld input device 934 shown in FIGS. 16-20. The footstraps 1028-1030 functions in the same manner as the foot straps 930-932shown in FIGS. 16-20.

Unlike the embodiment shown in FIGS. 16-17, connecting member assembly1026 does not include a vertical swiveling bracket system, such as thevertical swiveling bracket system 932 shown in FIGS. 16-17 (i.e., thebrackets are fixed without pitch control). In this exemplary embodiment,a handheld input device 1032 and the controller 1010 can have a joystick(not shown) with two axis control. The x-axis can control steering bysending differential power to the wheels 1018-1020. The y-axis cancontrol speed.

Referring to FIGS. 23-24 with continuing reference to the foregoingfigures, another exemplary alternate wheeled platform, generallydesignated by the numeral 1100, is shown. The wheeled platform 1100 canbe used in place of the wheeled platform 110 shown in FIG. 1. Thewheeled platform 1100 includes a base 1110, a controller 1112, a pair ofdrive mechanisms 1114-1116, a pair of wheels 1118-1120, an axle 1122connecting the wheels 1118-1120, a turntable 1124, a connecting memberassembly 1126, and a pair of foot straps 1128-1130.

In this exemplary embodiment, the base 1110, the pair of drivemechanisms 1114-1116, the pair of wheels 1118-1120, and the axle 1122function in the same manner as the base 610, the pair of drivemechanisms 614-616, the pair of wheels 618-720, and the axle 622 shownin FIGS. 10-11 or the base 710, the pair of drive mechanisms 714-716,the pair of wheels 718-720, and the axle 722 shown in FIGS. 12-13. Theturntable 1124 functions in the same manner as the turntable 724 shownin FIGS. 12-13 The foot straps 1128-1130 functions in the same manner asthe foot straps 930-932 shown in FIGS. 16-20.

Unlike the embodiment shown in FIGS. 21-22, connecting member assembly1126 includes a vertical swiveling bracket system 1132 that is similarto the vertical swiveling bracket system 932 shown in FIGS. 16-20. Thewheeled platform 1100 also includes an electromechanical controllerassembly 1134 having worm gear-driven mechanical stops. Theelectromechanical controller assembly 1134 limits the yawing of thewheel platform 1100 at high speed for stability.

Referring to FIG. 25 with continuing reference to the foregoing figures,another exemplary alternate wheeled platform, generally designated bythe numeral 1200, is shown. The wheeled platform 1200 can be used inplace of the wheeled platform 110 shown in FIG. 1. The wheeled platform1200 includes a base 1210, power supply 1212, a support surface 1214,power source 1216, and power supply module 1218 that perform essentiallythe same or similar functions to the base 120, power supply 124, supportsurface 126, power source 144, and power supply module 146 shown in FIG.1.

Unlike the embodiment shown in FIG. 1, the wheeled platform 1200includes a wheel assembly 1220 that includes a set of omnidirectionalwheels 1222-1224. The omnidirectional wheels 1222-1224 can be Omniwheels, poly wheels, or Mecanum wheels. In this exemplary embodiment,the omnidirectional wheels 1222-1224 provide a driving force that cancomplement or replace the driving force provided by the motor 140 shownin FIG. 1. The omnidirectional wheels 1222-1224 provide the wheeledplatform 1200 with the ability to move in all directions.

The omnidirectional wheels 1222-1224 can be oriented on either side ofthe wheeled platform 1200 oriented parallel to rear stroller wheels,such as the wheels 226 shown in FIG. 2. In such embodiments, theomnidirectional wheels 1222-1224 provide forwards and backwards force oneither side independently while still allowing sideways sliding of thewheeled platform 1200 during turning.

Omnidirectional wheels can be mounted in conventional application to bedriven four at a time at a 45 degree angle to allow force vectoring inall directions. In this exemplary embodiment, the omnidirectional wheels1222-1224 are mounted in parallel to allow for sideways movement and/orforward/backward force. In embodiments that include Mecanum wheels, theomnidirectional wheels 1222-1224 can provide sideways strafing forces aswell as front-to-back forces.

Referring to FIG. 26 with continuing reference to the foregoing figures,a method 1000 for operating a motorized stroller accessory system inaccordance with the described subject matter is shown. Method 1300, orportions thereof, can be performed using the various embodiments of amotorized stroller accessory system, such as the motorized strolleraccessory systems 100, 200, and 300, shown in FIGS. 1-6.

At 1301, an interface is connected to a stroller. In this exemplaryembodiment, the interface is a connector, such as the connector 116shown in FIG. 1, the connector 218 shown in FIGS. 2-4, or the connector316 shown in FIGS. 5-6. The connector can connect to a stroller, such asstroller 112 shown in FIG. 1, the stroller 214 shown in FIGS. 2-4, orthe stroller 312 shown in FIGS. 5-6.

At 1302, an operator is supported on an upper surface of a wheeledplatform. In this exemplary embodiment, the wheeled platform can be thewheeled platform 114 shown in FIG. 1, the wheeled platform 216 shown inFIGS. 2-4, or the wheeled platform 314 shown in FIGS. 5-6. The uppersurface can be the upper surface 126 shown in FIG. 1.

At 1303, at least one motor is coupled to the stroller. In thisexemplary embodiment, the motor can be the motor 140 shown in FIG. 1,the motors 248-250 shown in FIGS. 2-4, the motors 322-324 shown in FIGS.5-6, or the motor 416 shown in FIGS. 7-8. The stroller can be thestroller 112 shown in FIG. 1, the stroller 214 shown in FIGS. 2-4, orthe stroller 312 shown in FIGS. 5-6.

At 1304, power is sent from a power supply to the at least one motor todrive the stroller. In this exemplary embodiment, the power supply canbe the power supply 124 shown in FIG. 1 or the power supply 254 shown inFIG. 4. The motor can be the motor 140 shown in FIG. 1, the motors248-250 shown in FIGS. 2-4, the motors 322-324 shown in FIGS. 5-6, orthe motor 416 shown in FIGS. 7-8. The stroller can be driven by thedrive mechanism 500 shown in FIG. 9 or any other suitable drivemechanism.

It should be understood that the wheeled platform/stroller system can besteered by making the motors rotate at different speeds causing the rearstroller wheels to rotate at different rates and/or indifferentdirections. This operation can be controlled by independent motorcontrols accessible to the operator.

Supported Features and Embodiments

The detailed description provided above in connection with the appendeddrawings explicitly describes and supports various features of amotorized accessory that aids in propelling, stopping and steering thestroller while simultaneously carrying an operator. By way ofillustration and not limitation, supported embodiments include anapparatus for interfacing with a stroller, the apparatus comprising: awheeled platform having a base, a plurality of wheels, and a powersupply, a connector extending from the wheeled platform, a motorassembly having at least one motor mounted on the connector to couplewith the stroller, and a controller assembly for steering the stroller,wherein the base includes an upper surface for supporting an operator,wherein the base forms a wheel assembly for holding the wheels, andwherein the power supply sends power to the motor assembly through thecontrol assembly to drive the stroller.

Supported embodiments include the foregoing apparatus, wherein the powersupply sends power to the motor assembly through the control assembly tosteer the stroller.

Supported embodiments include any of the foregoing apparatuses, whereinthe plurality of wheels are mounted within the wheel assembly to swivel.

Supported embodiments include any of the foregoing apparatuses, whereinthe base upper surface includes a coating having a high coefficient offriction to engage the operator frictionally.

Supported embodiments include any of the foregoing apparatuses, whereinthe connector includes rigid armature.

Supported embodiments include any of the foregoing apparatuses, whereinthe rigid armature is mounted within the connector for movement in avertical direction.

Supported embodiments include any of the foregoing apparatuses, whereinthe rigid armature cannot move in the horizontal direction.

Supported embodiments include any of the foregoing apparatuses, whereinthe rigid armature is mounted within the connector for movement in ahorizontal direction.

Supported embodiments include any of the foregoing apparatuses, whereinthe stroller includes a bottom basket and the armature can be storedtherein.

Supported embodiments include any of the foregoing apparatuses, whereinthe power supply includes a power supply module mounted under the base.

Supported embodiments include any of the foregoing apparatuses, whereinthe controller assembly includes a control module positioned under thebase.

Supported embodiments include any of the foregoing apparatuses, whereinthe motor is a DC motor.

Supported embodiments include any of the foregoing apparatuses, whereinthe motor assembly includes a plurality of independently-controlled DCmotors.

Supported embodiments include any of the foregoing apparatuses, whereinthe DC motors are connected to a control module within the controllerassembly.

Supported embodiments include any of the foregoing apparatuses, whereinthe controller assembly includes a pair of hand-held controls.

Supported embodiments include any of the foregoing apparatuses, whereinthe pair of hand-held controls communicates with the control modulewirelessly.

Supported embodiments include any of the foregoing apparatuses, whereinthe pair of hand-held controls are connected to the control module forcommunication.

Supported embodiments include any of the foregoing apparatuses, whereinthe DC motors are mounted on tracks.

Supported embodiments include any of the foregoing apparatuses, whereinthe stroller includes a frame and the tracks are coupled on the frame.

Supported embodiments include any of the foregoing apparatuses, wherein:the motor assembly includes a plurality of DC motors, and the tracks arespring loaded to maintain tension from one or more rear wheels extendingfrom the stroller.

Supported embodiments include any of the foregoing apparatuses, wherein:the motor assembly includes a latch, and the tracks allow for the motorsto be disengaged from the stroller by activating the latch.

Supported embodiments include any of the foregoing apparatuses, whereinthe motor includes at least one motor shaft connected to sheavesselected from the group consisting of small radius flat sheaves andcurved sheaves, and the sheaves are coated with a material having a highcoefficient of friction.

Supported embodiments include any of the foregoing apparatuses, whereinthe plurality of wheels includes at least one omnidirectional wheel.

Supported embodiments include a system, a method, a kit, and/or meansfor implementing any of the foregoing apparatuses or a portion thereof.

Supported embodiments include a method for operating a wheeled platformhaving an interface extending therefrom, the method comprising:connecting the interface to a stroller, supporting an operator on anupper surface of the wheeled platform, coupling at least one motor tothe stroller, and sending power from a power supply to the at least onemotor to drive the stroller.

Supported embodiments include the foregoing method, further comprising:swiveling the plurality of wheels.

Supported embodiments include any of the foregoing methods, furthercomprising: controlling power supply, the at least one motor, and thewheel assembly with a hand-held controller.

Supported embodiments include any of the foregoing methods, wherein thehand-held controller communicates with the control module wirelessly.

Supported embodiments include any of the foregoing methods, furthercomprising: sending power from a power supply to the at least one motorto steer the stroller.

Supported embodiments include a system, an apparatus, a kit, and/ormeans for implementing any of the foregoing methods or a portionthereof.

Supported embodiments include an apparatus for interfacing with astroller, the apparatus comprising: supporting means for supporting anoperator, connecting means for connecting the supporting means to thestroller, driving means for driving the stroller, powering means forpowering the driving means, and controlling means for steering thestroller, wherein driving means are mounted on connecting means tocouple with the stroller.

Supported embodiments include a system, a method, a kit, and/or meansfor implementing the foregoing apparatus or a portion thereof.

Supported embodiments include a kit comprising: a wheeled platformhaving a base, a plurality of wheels, and a power supply, a connectorfor connecting to and extending from the wheeled platform, a motorassembly having at least one motor for mounting on the connector tocouple with a stroller, and a controller assembly coupling with thewheeled platform, wherein the base includes an upper surface forsupporting an operator, and wherein the base forms a wheel assembly forholding the wheels.

Supported embodiments include a system, a method, an apparatus, and/ormeans for implementing the foregoing kit or a portion thereof.

Supported embodiments include an apparatus for interfacing with astroller, the apparatus comprising: a wheeled platform having a base, aplurality of wheels, and a power supply, a connector extending from thewheeled platform, and a controller assembly for steering the stroller,wherein the base includes an upper surface for supporting an operator,wherein the base forms a wheel assembly for holding the wheels, andwherein the plurality of wheels includes at least one omnidirectionalwheel to drive the stroller.

Supported embodiments include a system, a method, a kit, and/or meansfor implementing the foregoing apparatus or a portion thereof.

Supported embodiments include a wheeled platform for use within amotorized stroller accessory, the wheeled platform comprising: a basefor supporting an operator, a wheel assembly having a drive mechanismfor driving the wheeled platform, and a power supply for powering thedrive mechanism.

Supported embodiments include the foregoing wheeled platform, furthercomprising: a connecting member assembly for connecting to a stroller.

Supported embodiments include any of the foregoing wheeled platforms,further comprising: a turntable connecting the connecting memberassembly to the base.

Supported embodiments include any of the foregoing wheeled platforms,wherein the connecting member assembly includes a plurality ofconnecting members that form a truss.

Supported embodiments include any of the foregoing wheeled platforms,wherein the wheel assembly includes at least one omnidirectional wheel.

Supported embodiments include any of the foregoing wheeled platforms,wherein the drive mechanism includes a plurality of wheels, a pluralityof pulleys, and a pair of belts.

Supported embodiments include any of the foregoing wheeled platforms,further comprising: an extension having a fork pivotally mounted thereonand an additional wheel mounted for rotation in the fork.

Supported embodiments include any of the foregoing wheeled platforms,further comprising: a controller having a gyroscopic sensor therein.

Supported embodiments include any of the foregoing wheeled platforms,wherein the controller can control the movement of the wheeled platform.

Supported embodiments include any of the foregoing wheeled platforms,wherein connecting member assembly includes a vertical swiveling bracketsystem.

Supported embodiments include any of the foregoing wheeled platforms,further comprising a handheld input device for communicating with thecontroller to instruct the controller to control the movement of thewheeled platform.

Supported embodiments include any of the foregoing wheeled platforms,further comprising: an electromechanical controller assembly having wormgear-driven mechanical stops to limit the yawing of the wheeledplatform.

Supported embodiments include an apparatus, a system, a method, a kit,and/or means for implementing the foregoing wheeled platform or aportion thereof.

Supported embodiments can provide various attendant and/or technicaladvantages in terms of improved efficiency and/or savings with respectto a system that is configured to interface with a stroller in order topropel said stroller and operator simultaneously. Further, the systemhas the ability to safely slow down or stop the stroller and operator.

Supported embodiments include a system with the ability to turn thestroller and/or with the ability to propel the stroller in reverse.Further, supported embodiments include a system that aids intransporting the stroller operator and occupant without causing physicalexertion or fatigue to either.

The detailed description provided above in connection with the appendeddrawings is intended as a description of examples and is not intended torepresent the only forms in which the present examples can beconstructed or utilized.

It is to be understood that the configurations and/or approachesdescribed herein are exemplary in nature, and that the describedembodiments, implementations and/or examples are not to be considered ina limiting sense, because numerous variations are possible. The specificprocesses or methods described herein can represent one or more of anynumber of processing strategies. As such, various operations illustratedand/or described can be performed in the sequence illustrated and/ordescribed, in other sequences, in parallel, or omitted. Likewise, theorder of the above-described processes can be changed.

Although the subject matter has been described in language specific tostructural features and/or methodological acts, it is to be understoodthat the subject matter defined in the appended claims is notnecessarily limited to the specific features or acts described above.Rather, the specific features and acts described above are presented asexample forms of implementing the claims.

What is claimed is:
 1. A wheeled platform for use with a conveyance, thewheeled platform comprising: a base for supporting an operator, a wheelassembly having a drive mechanism for driving the wheeled platform andthe conveyance, a power supply for powering the drive mechanism, and anextension having a fork pivotally mounted thereon and an additionalwheel mounted for rotation in the fork.
 2. The wheeled platform of claim1, further comprising: a connecting member assembly for connecting tothe conveyance.
 3. The wheeled platform of claim 2, further comprising:a turntable connecting the connecting member assembly to the base. 4.The wheeled platform of claim 2, wherein the connecting member assemblyincludes a plurality of connecting members that form a truss.
 5. Thewheeled platform of claim 1, wherein the drive mechanism includes aplurality of wheels, a plurality of pulleys, and a pair of flexiblemembers selected from the group consisting of belts and chains.
 6. Awheeled platform for use with a conveyance, the wheeled platformcomprising: a base for supporting an operator, a wheel assembly having adrive mechanism for driving the wheeled platform and the conveyance, apower supply for powering the drive mechanism, and a controller having agyroscopic sensor therein, wherein the controller can control themovement of the wheeled platform.
 7. The wheeled platform of claim 6,wherein connecting member assembly includes a vertical swiveling bracketsystem.
 8. The wheeled platform of claim 7, further comprising: ahandheld input device for communicating with the controller to instructthe controller to control the movement of the wheeled platform.
 9. Thewheeled platform of claim 6, further comprising: an electromechanicalcontroller assembly having worm gear-driven mechanical stops to limitthe yawing of the wheeled platform.
 10. The wheeled platform of claim 6,further comprising: a connecting member assembly for connecting to theconveyance.
 11. The wheeled platform of claim 10, further comprising: aturntable connecting the connecting member assembly to the base.
 12. Thewheeled platform of claim 10, wherein the connecting member assemblyincludes a plurality of connecting members that form a truss.
 13. Thewheeled platform of claim 10, wherein connecting member assemblyincludes a vertical swiveling bracket system.
 14. The wheeled platformof claim 13, further comprising: a handheld input device forcommunicating with the controller to instruct the controller to controlthe movement of the wheeled platform.
 15. The wheeled platform of claim10, further comprising: an electromechanical controller assembly havingworm gear-driven mechanical stops to limit the yawing of the wheeledplatform.
 16. The wheeled platform of claim 6, wherein the drivemechanism includes a plurality of wheels, a plurality of pulleys, and apair of flexible members selected from the group consisting of belts andchains.
 17. A method for operating a wheeled platform having aninterface extending therefrom, the method comprising: connecting theinterface to a conveyance, supporting an operator on an upper surface ofthe wheeled platform having a power supply, at least one pair of wheels,and a pair of motors with one of the pair of motors coupled to one ofthe pair of wheels and the other one of the pair of motors coupled tothe other one of the pair of wheels, and sending power from a powersupply to each of the pair of motors to drive each of the wheels todrive the conveyance and to steer the conveyance.
 18. The method ofclaim 17, further comprising: swiveling each of the pair of wheels. 19.The method of claim 17, further comprising: controlling the power supplyto control each of the pair of motors and each of the pair of wheelswith a hand-held controller.
 20. The method of claim 19, wherein thehand-held controller communicates with the control module wirelessly.